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vaieri [72.5K]
3 years ago
8

Area of a square is 80cm square what is it perimeter

Mathematics
1 answer:
tatyana61 [14]3 years ago
7 0
The perimeter of the square is 35.78

The formula for the perimeter of a square using its area is:
P = 4\sqrt{A}
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You finally get an allowance! You put $2.00 away in January, $4.00 away in February, $8.00 away in March, $16.00 away in April a
LekaFEV [45]

Answer:

$8190

Step-by-step explanation:

So we know that were putting away $2 each month from  our allowance.

Jan-$2

Feb-$4

March-$8

April-$16

Ok so we already put away 4 months of our allowance from 12. So we need 8 more months to count how much.

So lets add: 2 + 4 + 8 + 16=30

Now we need to figure out how much in May and so on.

May- 16x2=32

June-32x2=64

July-64x2=128

August-128 x 2=256

September-256 x 2=512

October-512 x 2=1024

November-1024 x 2=2048

December-2048 x 2=4096

In total to add:

2 + 4 + 8 + 16 + 32 +64 + 128 + 256 + 512 + 1024 + 2048 + 4096 = 8190

Hope this helps :)

3 0
3 years ago
Find the arc length of AB⌢. Round your answer to the nearest hundredth.
gizmo_the_mogwai [7]

Answer:

3.14 ft

Step-by-step explanation:

The arc AB is the minor arc of the given circle. The length l of the minor arc of a circle is given as

l = Ф°/360° × 2πr

where

Ф is the angle of the arc at the center of the circle

r is the radius of the circle and

π is a mathematical constant equivalent to 22/7

r = 8/2 = 4 ft

Hence

l = 45°/360° × 2 × 22/7 × 4

= 22/7 ft

= 3.14 ft

5 0
3 years ago
During the day the temperature was -3 Fahrenheit at night the temperature dropped 19 Fahrenheit what was the temperature at nigh
CaHeK987 [17]

Answer:

Step-by-step explanation:

during the day, it was -3.....at night it dropped 19 degrees...

so at night it is : (-3 - 19) = - 22 degrees Fahrenheit

8 0
3 years ago
Combine like terms to simplify the following expressions <br><br> -5a - 4a + b
Sauron [17]

Answer:

-9a + b

Step-by-step explanation:

For this problem, let us factor out the variable a from the terms containing the variable, and apply addition and the distributive property to simplify the terms.

-5a - 4a + b

= a ( -5 + -4 ) + b

= a ( -9 ) + b

= -9a + b

Hence, the simplified expression for -5a - 4a + b is -9a + b.

Cheers.

7 0
3 years ago
Read 2 more answers
Michael's car can travel 25 miles on one gallon of gas. The cost of gas is $3.75 per gallon. Which equation could calculate the
Sedaia [141]
T = 3.75n over 25 (make it a fraction)
6 0
3 years ago
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